A new weevil of the subgenus Otismotilus Reitter, 1912, genus Otiorhynchus Germar, 1824 (Coleoptera: Curculionidae: Entiminae) from the Caucasus

A brief morphological characteristic of the subgenus Otismotilus Reitter, 1912 is given. Otiorhynchus paradigitalis sp. n. is described from Zekari Pass in Georgia. Diagnosis of a new species: the species belongs to the species-subgroup with thickened antennae (O. digitalis, O. depressus, O. oezb...

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Main Author: G.E. Davidian
Format: Article
Language:English
Published: Southern Scientific Centre of the Russian Academy of Science, Federal state budgetary institution 2020-03-01
Series:Кавказский энтомологический бюллетень
Subjects:
Online Access:http://www.ssc-ras.ru/ckfinder/userfiles/files/16(1)_3_Davidian.pdf
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author G.E. Davidian
author_facet G.E. Davidian
author_sort G.E. Davidian
collection DOAJ
description A brief morphological characteristic of the subgenus Otismotilus Reitter, 1912 is given. Otiorhynchus paradigitalis sp. n. is described from Zekari Pass in Georgia. Diagnosis of a new species: the species belongs to the species-subgroup with thickened antennae (O. digitalis, O. depressus, O. oezbeki and O. kataevi) in the species-group granulatopunctatus. Otiorhynchus paradigitalis sp. n. is most similar to O. digitalis, from which it differs by the slightly shorter epistomal angles of females, weakly transverse 3rd funicular segment, oval-shaped elytra widely rounded apically, shorter setae on elytral intervals, shorter manubrium of spiculum ventrale, closely located (almost touching each other) ramus and collum of the spermatheca and slightly smaller stylus on coxites. The new species is also similar to O. oezbeki by the horn-like elongate male epistomal angles, almost reaching the mandibular apex and also by the form of elytra with straight or slightly concave sides before the base; O. paradigitalis sp. n. differs from the mentioned species by the weakly convex disc of pronotum, more elongate 2nd funicular segment, right outer apical angle of the fore tibia and distinctly widened from the outside corbel of the hind tibia. A key to six species of the quadratopunctatus species-group of the subgenus Otismotilus with thickened antennae is given.
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spelling doaj.art-ede9cc46c1db49828cc0fa4fb9899dfd2023-12-03T14:36:00ZengSouthern Scientific Centre of the Russian Academy of Science, Federal state budgetary institutionКавказский энтомологический бюллетень1814-33261814-33262020-03-011612125DOI:10.23885/181433262020161-2125A new weevil of the subgenus Otismotilus Reitter, 1912, genus Otiorhynchus Germar, 1824 (Coleoptera: Curculionidae: Entiminae) from the CaucasusG.E. Davidian0All-Russian Institute of Plant ProtectionA brief morphological characteristic of the subgenus Otismotilus Reitter, 1912 is given. Otiorhynchus paradigitalis sp. n. is described from Zekari Pass in Georgia. Diagnosis of a new species: the species belongs to the species-subgroup with thickened antennae (O. digitalis, O. depressus, O. oezbeki and O. kataevi) in the species-group granulatopunctatus. Otiorhynchus paradigitalis sp. n. is most similar to O. digitalis, from which it differs by the slightly shorter epistomal angles of females, weakly transverse 3rd funicular segment, oval-shaped elytra widely rounded apically, shorter setae on elytral intervals, shorter manubrium of spiculum ventrale, closely located (almost touching each other) ramus and collum of the spermatheca and slightly smaller stylus on coxites. The new species is also similar to O. oezbeki by the horn-like elongate male epistomal angles, almost reaching the mandibular apex and also by the form of elytra with straight or slightly concave sides before the base; O. paradigitalis sp. n. differs from the mentioned species by the weakly convex disc of pronotum, more elongate 2nd funicular segment, right outer apical angle of the fore tibia and distinctly widened from the outside corbel of the hind tibia. A key to six species of the quadratopunctatus species-group of the subgenus Otismotilus with thickened antennae is given.http://www.ssc-ras.ru/ckfinder/userfiles/files/16(1)_3_Davidian.pdfcurculionidaeentiminaeotiorhynchusotismotilusnew speciescaucasusgeorgia
spellingShingle G.E. Davidian
A new weevil of the subgenus Otismotilus Reitter, 1912, genus Otiorhynchus Germar, 1824 (Coleoptera: Curculionidae: Entiminae) from the Caucasus
Кавказский энтомологический бюллетень
curculionidae
entiminae
otiorhynchus
otismotilus
new species
caucasus
georgia
title A new weevil of the subgenus Otismotilus Reitter, 1912, genus Otiorhynchus Germar, 1824 (Coleoptera: Curculionidae: Entiminae) from the Caucasus
title_full A new weevil of the subgenus Otismotilus Reitter, 1912, genus Otiorhynchus Germar, 1824 (Coleoptera: Curculionidae: Entiminae) from the Caucasus
title_fullStr A new weevil of the subgenus Otismotilus Reitter, 1912, genus Otiorhynchus Germar, 1824 (Coleoptera: Curculionidae: Entiminae) from the Caucasus
title_full_unstemmed A new weevil of the subgenus Otismotilus Reitter, 1912, genus Otiorhynchus Germar, 1824 (Coleoptera: Curculionidae: Entiminae) from the Caucasus
title_short A new weevil of the subgenus Otismotilus Reitter, 1912, genus Otiorhynchus Germar, 1824 (Coleoptera: Curculionidae: Entiminae) from the Caucasus
title_sort new weevil of the subgenus otismotilus reitter 1912 genus otiorhynchus germar 1824 coleoptera curculionidae entiminae from the caucasus
topic curculionidae
entiminae
otiorhynchus
otismotilus
new species
caucasus
georgia
url http://www.ssc-ras.ru/ckfinder/userfiles/files/16(1)_3_Davidian.pdf
work_keys_str_mv AT gedavidian anewweevilofthesubgenusotismotilusreitter1912genusotiorhynchusgermar1824coleopteracurculionidaeentiminaefromthecaucasus
AT gedavidian newweevilofthesubgenusotismotilusreitter1912genusotiorhynchusgermar1824coleopteracurculionidaeentiminaefromthecaucasus